Mixing and admission valve structure for internal-combustion motors.



A. WINTON.

MIXING AND ADMISSION VALVE STRUCTURE FOR INTERNAL COMBUSTION MOTORS.

APPLICATION FILED JUNE25, I914- I 1,26 9. Patented Mar. 26, 1918.

. Z SHEETS-SHEET I- 7 0 Fuel Tank.

A. WINTON. MIXING AND ADMISSION VALVE STRUCTURE FOR INTERNAL COMBUSTI ON MOTORS.

Patented Mar. 26, 1918.

2 SHEETSSHEET 2- ALEXANDER WINTON', OF LAKEWOOD, OHIO, ASSIGNOR TO THE WIN TON GAS ENGINE &

MANUFACTURING COMPANY, OF CLEVELAND,

OHIO, A CORPORATION OF OHIO..

MIXING AND ADMISSION VALVE STRUCTURE FOR INTERNAL-COMBUSTION MOTORS.

Specification of Letters Patent.

Patent ed Mar. as, was.

Applicationflled June 25, 1914. Serial No. 847,271.

a To all whom z'tmay concern:

a valve structure for internal combustion motors comprising a tubular casing having an internal longitudinally disposed mixing valve chamber opening out at the top through a suitable stuifing box structure .and out at the bottom in an opening provided with a valve seat. The casing is also provided with a suitable air inlet near the upper end and a fuel inlet at a point nearer the valve end and removed from the air inlet. Arranged within the mixing chamber is a mixer and valve structure comprising a stem extending through a stufling box at the upper end and having on the lower end a valve cooperating with the valve seat carried by the casing, the portion of the stem adjacent to the valve being reduced and gradually increasing in size toward the base of the valve. The stem is guided near the valve by a suitable flange portion of the casing and passage past this guiding portion is provided by longitudinal recesses in the stem. Between the guiding portion and the fuel inlet the stem is provided with a plurality of rings, one ring having an opening larger than the stem and provided with downwardly extendingtween the air inlet and the fuel inlet the stem is provided with a sleeve less in diameter than the bore of the mixing chamber and adapted to distribute the flow of air.

The invention may be further briefly summarized as consisting in the construction and combination of parts hereinafter set forth in the following description, drawings and claims.

Referring to the drawings, Figure 1 is a side elevation of a portion of an engine shown in more or less conventional form and provided with the valve structure; Fig. 2 is an enlarged vertical section of the valve; Fig. 3 is a sectional view of the sleevefor holding the rings in place'and for restricting thev entrance of air; Fig. 4 is a bottom plan of the restricting sleeve; Fig. 5 is an enlarged sectional view of a portion of the stem and casing, and showing the rings in section to illustrate the discharge of the mixture; Fig. (3 is a sectional view of one of the rings which serves to provide the peripheral passage for the mixture; Fig. 7 is a bottom plan of the same; Fig. 8 is a detail view of the other ring providing the internal peripheral passage for the mixture; Fig. 9 is a bottom plan view of this ring; Fig. 10

.is a detail elevation illustrating the operating mechanism for the valve; and Figs. 11 and 12 are respectively a plan view and a detail sectional elevation of a modified form of ring In carrying out the invention any pro ferred form and construction of engine may be provided with my invention provided it possesses the necessary features, but I have shown conventionally an engine comprising a crank case 1, a cylinder 2, and a fuel and air supply mechanism 3.

The cylinder 2 is provided with a head thaving an exhaust valve guide 5 for receiving a stem 6 of an exhaust valve 7 adapted to seat on an exhaust valve seat 8. This valve is held in place by the usual spring 9 held in place by a collar 10. The head is still further provided on the opposite side of the center with inlet valve 11 provided with a valve stem an auxiliary air I 12 arranged in the guide 13 arranged the head. This valve is provided with a suitable seat and is normally seated by a spring 14 engaging a collar 15. Arranged in the head and preferably between the two valves described is a fuel and air mixing and admission valve supportin guide 16 in which the mixin and admission valve structure is mounte The mixing and admission valve structure comprises a tubular casing 17 having a reduced portion 18 near its lower end forming a shoulder 19 engaging a shoulder in the guide 16. The casing is secured in place-in any suitable manner and is provided above the outside of the guide with an air admission connection 20 adapted to be connected to the air supply p1pe 21 supplied with air under pressure, the pressure being greater than the internal compression in the cylinder. Opposed to this connection 20 is a fuel connection 22 provided with a threaded opening 23 for receiving the fuel pipe 24 adapted to be supplied with fuel under pressure. The casing 17 is provided with a longitudinally disposed opening 25 counterbored at the upper end to form a shoulder 26 for a purpose to be described. The extreme upper end of the casing 17 is threaded to receive a gland nut 27 engaging a gland 28 surrounding a valve stem to be described. This gland engages suitable packing 29 arranged about the valve stem. The casing near its inner end is provided with an inwardly extending flange 30 spaced from the end to form a chamber 31 which communicates with a discharge-opening 32, the outer edge of which forms a valve seat 33 adapted to be engaged by the admission valve 34 mounted upon the valve stem 35. This stem at the flange 30 is provided with longitudinally disposed recesses or grooves 36 permitting the passage of the mixture past the flange, the structure at this point being for the purpose of guiding the stem and delivering the mixture to the chamber 31. Between the portion of the stem which is provided with the recesses 36 and the base of the valve 34, the stem is provided with a tapered portion 37 having its smaller diameter adjacent to the grooved portion of the stem, and its larger portion toward the base of the valve to form a nozzling efiect between it and the walls of the casing at the valve seat, so as to project the charge into the cylinder with great velocity. The valve stem extends up through the casing and out through the gland nut 27 where it is provided with a suitable collar 38 engaging a spring 39 arran ed between it and the gland nut for hol ing the valve normally seated.

Surrounding the valve stem between the flange 30 and the inlet connection 20 is an air and fuel mixing structure consisting of a casing.

of two different characters. One ring 40 is designated as the pe ri heral passage ring, and it is provided with an opening 41 fitting the stem, and 1s less in diameter than the bore of the casing, so that a peripheral passage is formed between it and the inner wall of the casing. This ring is provided with downwardly extending lugs 42 which engage upon the top of another ring 43 herein designated as the inner peripheral passage ring, this ring having an opening 44 therein slightly larger than the stem 35 to provide a passage at this point and having downwardly extending lugs 45 engaging the next ring 40. These rings are alternated, so that the fuel must plurality of rings pass by the outer periphery of one, past the inner periphery of the other, and so on through the series, thus producing eddies in the pockets formed and bringing about a perfect mixture of the air and fuel. This ring structure is provided for a portion of the length of the stem and preferably from a point above the flange 30 to a point near the fuel inlet port 46 which is arranged in-.

termediate the lower end of the casing and gas inlet it is grooved on its periphery longitudinally to provide guiding projections 50 which engage the inner wall of the casing and permit the passage of air past this point. Near the upper end and adjacent to the air inlet port 51 of the casing, the sleeve is provided with a groove 52 permitting the free passage of air around the stem, so that it will pass down uniformly through the space between the sleeve and the inner wall of the The upper end of the sleeve is enlarged at 53 and the shoulder rests upon the shoulder 26 and is held thereagainst by the packing 29.

The valve is actuated by a rocker lever 54 mounted upon a pivot 55 supported in a bracket 56, and this lever is provided at one end adjacent to the stem, as shown in Fig. 10, witha tappet screw 57 held in place by a check nut 58 while the opposite end of this rocker is provided with a friction roller 59 engaging a cam 60 carried by cam disks 61 mounted upon a shaft 62 driven by the engine.

. Assuming'that fuel is supplied to the fuel supplying mechanism and that air under pressure is supplied, and further assuming that the engine is rotated, then at the proper time the valve operating mechanism moves the valve stem 35 downward causing the valve 34 to leave its seat, with the result that air under pressure passes through the port 51 about the sleeve down to the point where it meets the fuel, which is, in the meantime, supplied through the ports 46, 47 and 48. The two then pass down in a circuitous route by the outer periphery of one ring past the inner periphery of the other and so on until they pass through the recesses 36 to the chamber 31 from whence they are projected by the nozzling portion of the valve out through the valve seat into the cylinder, compression in the cylinder being such at this point that the charge is ignited, and the engine receives an impulse.

This valve is particularly adapted for high pressure engines wherein ignition is produced by the intense compression brought about in the cylinder.

In Figs. 11 and 12 a modified form of ring is shown wherein the upper surface is annularly grooved 0r corrugated to form annular ribs 63 which tend to collect in the grooves any liquid fuel and hold it for ex- .posure to the stream of air and mixture passing through.

Having described my invention, I

claim 1. A mixing and admission valve for internal combustion motors, comprising a casing having air and fuel inlets and an outlet, a valve seat surrounding said outlet, and admission and mixing valve mechanism arranged therein and comprising a valve stem, a valve mounted upon said stem and cooperating with said seat, and a plurality of rings spaced apart to form annular chambers, alternate rings having external and internal peripheral passages respectively for the gas between said chambers whereby it will pursue a circuitous route through the mechanism and be thoroughly mixed, the rings having the internal peripheral passages being provided with integral spacing lugs near their outer periphery, and the rings having the external peripheral passages having integral spacing lugs near their inner periphery.

2-. A mixing and admission valve structure for. internal combustion motors, comprising a casing having a chamber provided with a valve seat at its inner end, and a shoulder formed internally above the valve seat, together with a fuel port leading through the casing to a point in said chamber intermediate the shoulder and the outer end-of the casing, and an air port leading to the outer end of said chamber, a plurality of spaced rings having openings forming circuitous passages for the mixture, said rings being arranged between said shoulder and fuel inlet opening, a valve cooperating with the valve seat, a stem for said valve extending through said rings and out through the outer end of the casing, a sleeve in said chamber surrounding said stem and engaging the rings and forming an annular peripheral passage for air from charge valve seat at one en an air inlet, a

fuel inlet intermediate of the discharge valve seat and the air inlet, a valve stem extending through said casing, a discharge valve carried thereby and cooperating with said valve seat, a plurality of annular members forming communicating annular mixing pockets between the fuel inlet and the discharge valve, and a sleeve surrounding said stem and cooperatin with the inner wall of the casing to restrict the flow of air from the air inlet to the fuel inlet.

4. A mixing and admission valve structure for internal combustion motors comprising a cylindrical casing having a discharge valve seat atone end, an air inlet near the other end, a fuel inlet intermediate of the discharge valve seat and the air inlet, a valve stem extending through said casing, a discharge valve carried thereby and cooperating with said valve seat, a plurality of rings surrounding said stem and of alternate structures, one ring having a bore greater than the diameter of the stem and equal to the bore of the casing, and the other having a bore equal to the diameter of the stem and less than the bore of the casing, whereby there is alternately an external peripheral passage and an internal peripheral passage as the mixture passes from one ring to the other, and lugs arranged upon the rings for spacing them from each other.

5. A mixing and admission valve for internal combustion motors comprising a casing having air and fuel inlets and a discharge, and admission and mixing valve mechanism arranged therein and comprising a valve stem, a valve mounted upon said stem and cooperating with the valve seat, and a plurality of rings spaced apart to form annular chambers and having alternate external and internal peripheral assages for the-gas between said cham ers whereby it will pursue a circuitous route through the mechanism and be thoroughly mixed, said rings having interrupted upper surfaces for collecting any liquid fuel in its course through the ring.

6. Amixing and admission valve for internal combustion motors comprising a casing having'air and fuel inlets and a discharge, and admission and mixing valve mechanism arranged therein and comprising a valve stem, a valve mounted upon said stem and cooperating with the valve seat, for collecting any liquid fuel present in the and a plurality of rings spaced apart to annular chambers. 10 form annular chambers and having alter- In testimony whereof I afiix my signature nate external and internal peripheral pasin presence of two Witnesses.

5 sages for the as between said chambers ALEXANDER WINTON.

whereby it wil pursue a circuitous route Witnesses:

through the mechanism and be thoroughly W. A. MCKENSTRY,

mixed, said rings having annular grooves E. D. BISHOP. 

